The update for Vizio TVs and Samsung devices is in the works, but everyone else should have access now.

If you have a device hooked up to your home theater that sports Vudu
integration, you'll be greeted with a brand new interface when you turn
it on today. There's no need to download anything or set anything up -
everything happens automatically.

The new Vudu interface provides you with faster access to the movies you
want to watch, a recommendation list based on your viewing history, as
well as browsing and navigation tweaks designed to make things quicker
and easier.

Those using Vudu on a Vizio TV or Samsung device are out of luck - the
update for Vizio and Samsung is still in the works, though Vudu says
that they expect to roll it out soon.